Question

a box contains cards numbered 11 to 123 a card is drawn at random from the box find the probability that the number on the Drone card is first a square number second a multiple of 7

Answer 1

a.the total number of outcomes are-113
Favourable outcomes are-8 (the square numbers)
therefore.
p (e)= fav.outcomes/ total no.of outcomes
=8/113
therefore probability of square number is 8/113
b. multiples of seven are 16
means fav.outcomes = 16
total outcomes are 113
p (e)= 16/113
therefore probability of multiples of 7 is 16/113